import { expect } from 'expect'
import { restore, stub } from 'sinon'
-import { ThreadWorker } from '../../lib/index.js'
-describe('Thread worker test suite', () => {
- class SpyWorker extends ThreadWorker {
- constructor (fn) {
- super(fn)
- this.port = { postMessage: stub().returns() }
- }
- }
+import { ThreadWorker } from '../../lib/index.cjs'
+import { DEFAULT_TASK_NAME } from '../../lib/utils.cjs'
+describe('Thread worker test suite', () => {
afterEach(() => {
restore()
})
+ it('Verify worker properties value after initialization', () => {
+ const worker = new ThreadWorker(() => {})
+ expect(worker.isMain).toBe(true)
+ expect(worker.mainWorker).toBe(null)
+ expect(worker.taskFunctions).toBeInstanceOf(Map)
+ expect(worker.taskFunctions.size).toBe(2)
+ })
+
+ it('Verify that sync kill handler is called when worker is killed', () => {
+ const worker = new ThreadWorker(() => {}, {
+ killHandler: stub().returns(),
+ })
+ worker.isMain = false
+ worker.port = {
+ postMessage: stub().returns(),
+ unref: stub().returns(),
+ close: stub().returns(),
+ }
+ worker.handleKillMessage()
+ expect(worker.port.postMessage.calledOnce).toBe(true)
+ expect(worker.port.unref.calledOnce).toBe(true)
+ expect(worker.port.close.calledOnce).toBe(true)
+ expect(worker.opts.killHandler.calledOnce).toBe(true)
+ })
+
+ it('Verify that removeTaskFunction() is working', () => {
+ const fn1 = () => {
+ return 1
+ }
+ const fn2 = () => {
+ return 2
+ }
+ const worker = new ThreadWorker({ fn1, fn2 })
+ worker.port = {
+ postMessage: stub().returns(),
+ }
+ expect(worker.removeTaskFunction(0, fn1)).toStrictEqual({
+ status: false,
+ error: new TypeError('name parameter is not a string'),
+ })
+ expect(worker.removeTaskFunction('', fn1)).toStrictEqual({
+ status: false,
+ error: new TypeError('name parameter is an empty string'),
+ })
+ expect(worker.taskFunctions.get(DEFAULT_TASK_NAME)).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn1')).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn2')).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.size).toBe(3)
+ expect(worker.taskFunctions.get(DEFAULT_TASK_NAME)).toStrictEqual(
+ worker.taskFunctions.get('fn1')
+ )
+ expect(worker.removeTaskFunction(DEFAULT_TASK_NAME)).toStrictEqual({
+ status: false,
+ error: new Error(
+ 'Cannot remove the task function with the default reserved name'
+ ),
+ })
+ expect(worker.removeTaskFunction('fn1')).toStrictEqual({
+ status: false,
+ error: new Error(
+ 'Cannot remove the task function used as the default task function'
+ ),
+ })
+ worker.removeTaskFunction('fn2')
+ expect(worker.taskFunctions.get(DEFAULT_TASK_NAME)).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn1')).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn2')).toBeUndefined()
+ expect(worker.taskFunctions.size).toBe(2)
+ expect(worker.port.postMessage.calledOnce).toBe(true)
+ })
+
it('Verify that handleError() method is working properly', () => {
const error = new Error('Error as an error')
const worker = new ThreadWorker(() => {})
expect(worker.handleError(errorMessage)).toStrictEqual(errorMessage)
})
- it('Verify worker invokes the postMessage() method on port property', () => {
- const worker = new SpyWorker(() => {})
+ it('Verify that sendToMainWorker() method invokes the port property postMessage() method', () => {
+ const worker = new ThreadWorker(() => {})
+ worker.port = { postMessage: stub().returns() }
worker.sendToMainWorker({ ok: 1 })
expect(worker.port.postMessage.calledOnce).toBe(true)
})